./tools/notsd-move

1 files changed, 0 insertions, 816 deletions

diff --git a/src/basic/path-util.c b/src/basic/path-util.c
deleted file mode 100644
index b2fa81a294..0000000000
--- a/src/basic/path-util.c
+++ /dev/null
@@ -1,816 +0,0 @@
-/***
-  This file is part of systemd.
-
-  Copyright 2010-2012 Lennart Poettering
-
-  systemd is free software; you can redistribute it and/or modify it
-  under the terms of the GNU Lesser General Public License as published by
-  the Free Software Foundation; either version 2.1 of the License, or
-  (at your option) any later version.
-
-  systemd is distributed in the hope that it will be useful, but
-  WITHOUT ANY WARRANTY; without even the implied warranty of
-  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-  Lesser General Public License for more details.
-
-  You should have received a copy of the GNU Lesser General Public License
-  along with systemd; If not, see <http://www.gnu.org/licenses/>.
-***/
-
-#include <errno.h>
-#include <limits.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/stat.h>
-#include <unistd.h>
-
-/* When we include libgen.h because we need dirname() we immediately
- * undefine basename() since libgen.h defines it as a macro to the
- * POSIX version which is really broken. We prefer GNU basename(). */
-#include <libgen.h>
-#undef basename
-
-#include "alloc-util.h"
-#include "extract-word.h"
-#include "fs-util.h"
-#include "log.h"
-#include "macro.h"
-#include "missing.h"
-#include "path-util.h"
-#include "stat-util.h"
-#include "string-util.h"
-#include "strv.h"
-#include "time-util.h"
-
-bool path_is_absolute(const char *p) {
-        return p[0] == '/';
-}
-
-bool is_path(const char *p) {
-        return !!strchr(p, '/');
-}
-
-int path_split_and_make_absolute(const char *p, char ***ret) {
-        char **l;
-        int r;
-
-        assert(p);
-        assert(ret);
-
-        l = strv_split(p, ":");
-        if (!l)
-                return -ENOMEM;
-
-        r = path_strv_make_absolute_cwd(l);
-        if (r < 0) {
-                strv_free(l);
-                return r;
-        }
-
-        *ret = l;
-        return r;
-}
-
-char *path_make_absolute(const char *p, const char *prefix) {
-        assert(p);
-
-        /* Makes every item in the list an absolute path by prepending
-         * the prefix, if specified and necessary */
-
-        if (path_is_absolute(p) || !prefix)
-                return strdup(p);
-
-        return strjoin(prefix, "/", p, NULL);
-}
-
-int path_make_absolute_cwd(const char *p, char **ret) {
-        char *c;
-
-        assert(p);
-        assert(ret);
-
-        /* Similar to path_make_absolute(), but prefixes with the
-         * current working directory. */
-
-        if (path_is_absolute(p))
-                c = strdup(p);
-        else {
-                _cleanup_free_ char *cwd = NULL;
-
-                cwd = get_current_dir_name();
-                if (!cwd)
-                        return negative_errno();
-
-                c = strjoin(cwd, "/", p, NULL);
-        }
-        if (!c)
-                return -ENOMEM;
-
-        *ret = c;
-        return 0;
-}
-
-int path_make_relative(const char *from_dir, const char *to_path, char **_r) {
-        char *r, *p;
-        unsigned n_parents;
-
-        assert(from_dir);
-        assert(to_path);
-        assert(_r);
-
-        /* Strips the common part, and adds ".." elements as necessary. */
-
-        if (!path_is_absolute(from_dir))
-                return -EINVAL;
-
-        if (!path_is_absolute(to_path))
-                return -EINVAL;
-
-        /* Skip the common part. */
-        for (;;) {
-                size_t a;
-                size_t b;
-
-                from_dir += strspn(from_dir, "/");
-                to_path += strspn(to_path, "/");
-
-                if (!*from_dir) {
-                        if (!*to_path)
-                                /* from_dir equals to_path. */
-                                r = strdup(".");
-                        else
-                                /* from_dir is a parent directory of to_path. */
-                                r = strdup(to_path);
-
-                        if (!r)
-                                return -ENOMEM;
-
-                        path_kill_slashes(r);
-
-                        *_r = r;
-                        return 0;
-                }
-
-                if (!*to_path)
-                        break;
-
-                a = strcspn(from_dir, "/");
-                b = strcspn(to_path, "/");
-
-                if (a != b)
-                        break;
-
-                if (memcmp(from_dir, to_path, a) != 0)
-                        break;
-
-                from_dir += a;
-                to_path += b;
-        }
-
-        /* If we're here, then "from_dir" has one or more elements that need to
-         * be replaced with "..". */
-
-        /* Count the number of necessary ".." elements. */
-        for (n_parents = 0;;) {
-                from_dir += strspn(from_dir, "/");
-
-                if (!*from_dir)
-                        break;
-
-                from_dir += strcspn(from_dir, "/");
-                n_parents++;
-        }
-
-        r = malloc(n_parents * 3 + strlen(to_path) + 1);
-        if (!r)
-                return -ENOMEM;
-
-        for (p = r; n_parents > 0; n_parents--, p += 3)
-                memcpy(p, "../", 3);
-
-        strcpy(p, to_path);
-        path_kill_slashes(r);
-
-        *_r = r;
-        return 0;
-}
-
-int path_strv_make_absolute_cwd(char **l) {
-        char **s;
-        int r;
-
-        /* Goes through every item in the string list and makes it
-         * absolute. This works in place and won't rollback any
-         * changes on failure. */
-
-        STRV_FOREACH(s, l) {
-                char *t;
-
-                r = path_make_absolute_cwd(*s, &t);
-                if (r < 0)
-                        return r;
-
-                free(*s);
-                *s = t;
-        }
-
-        return 0;
-}
-
-char **path_strv_resolve(char **l, const char *prefix) {
-        char **s;
-        unsigned k = 0;
-        bool enomem = false;
-
-        if (strv_isempty(l))
-                return l;
-
-        /* Goes through every item in the string list and canonicalize
-         * the path. This works in place and won't rollback any
-         * changes on failure. */
-
-        STRV_FOREACH(s, l) {
-                char *t, *u;
-                _cleanup_free_ char *orig = NULL;
-
-                if (!path_is_absolute(*s)) {
-                        free(*s);
-                        continue;
-                }
-
-                if (prefix) {
-                        orig = *s;
-                        t = strappend(prefix, orig);
-                        if (!t) {
-                                enomem = true;
-                                continue;
-                        }
-                } else
-                        t = *s;
-
-                errno = 0;
-                u = canonicalize_file_name(t);
-                if (!u) {
-                        if (errno == ENOENT) {
-                                if (prefix) {
-                                        u = orig;
-                                        orig = NULL;
-                                        free(t);
-                                } else
-                                        u = t;
-                        } else {
-                                free(t);
-                                if (errno == ENOMEM || errno == 0)
-                                        enomem = true;
-
-                                continue;
-                        }
-                } else if (prefix) {
-                        char *x;
-
-                        free(t);
-                        x = path_startswith(u, prefix);
-                        if (x) {
-                                /* restore the slash if it was lost */
-                                if (!startswith(x, "/"))
-                                        *(--x) = '/';
-
-                                t = strdup(x);
-                                free(u);
-                                if (!t) {
-                                        enomem = true;
-                                        continue;
-                                }
-                                u = t;
-                        } else {
-                                /* canonicalized path goes outside of
-                                 * prefix, keep the original path instead */
-                                free(u);
-                                u = orig;
-                                orig = NULL;
-                        }
-                } else
-                        free(t);
-
-                l[k++] = u;
-        }
-
-        l[k] = NULL;
-
-        if (enomem)
-                return NULL;
-
-        return l;
-}
-
-char **path_strv_resolve_uniq(char **l, const char *prefix) {
-
-        if (strv_isempty(l))
-                return l;
-
-        if (!path_strv_resolve(l, prefix))
-                return NULL;
-
-        return strv_uniq(l);
-}
-
-char *path_kill_slashes(char *path) {
-        char *f, *t;
-        bool slash = false;
-
-        /* Removes redundant inner and trailing slashes. Modifies the
-         * passed string in-place.
-         *
-         * ///foo///bar/ becomes /foo/bar
-         */
-
-        for (f = path, t = path; *f; f++) {
-
-                if (*f == '/') {
-                        slash = true;
-                        continue;
-                }
-
-                if (slash) {
-                        slash = false;
-                        *(t++) = '/';
-                }
-
-                *(t++) = *f;
-        }
-
-        /* Special rule, if we are talking of the root directory, a
-        trailing slash is good */
-
-        if (t == path && slash)
-                *(t++) = '/';
-
-        *t = 0;
-        return path;
-}
-
-char* path_startswith(const char *path, const char *prefix) {
-        assert(path);
-        assert(prefix);
-
-        if ((path[0] == '/') != (prefix[0] == '/'))
-                return NULL;
-
-        for (;;) {
-                size_t a, b;
-
-                path += strspn(path, "/");
-                prefix += strspn(prefix, "/");
-
-                if (*prefix == 0)
-                        return (char*) path;
-
-                if (*path == 0)
-                        return NULL;
-
-                a = strcspn(path, "/");
-                b = strcspn(prefix, "/");
-
-                if (a != b)
-                        return NULL;
-
-                if (memcmp(path, prefix, a) != 0)
-                        return NULL;
-
-                path += a;
-                prefix += b;
-        }
-}
-
-int path_compare(const char *a, const char *b) {
-        int d;
-
-        assert(a);
-        assert(b);
-
-        /* A relative path and an abolute path must not compare as equal.
-         * Which one is sorted before the other does not really matter.
-         * Here a relative path is ordered before an absolute path. */
-        d = (a[0] == '/') - (b[0] == '/');
-        if (d != 0)
-                return d;
-
-        for (;;) {
-                size_t j, k;
-
-                a += strspn(a, "/");
-                b += strspn(b, "/");
-
-                if (*a == 0 && *b == 0)
-                        return 0;
-
-                /* Order prefixes first: "/foo" before "/foo/bar" */
-                if (*a == 0)
-                        return -1;
-                if (*b == 0)
-                        return 1;
-
-                j = strcspn(a, "/");
-                k = strcspn(b, "/");
-
-                /* Alphabetical sort: "/foo/aaa" before "/foo/b" */
-                d = memcmp(a, b, MIN(j, k));
-                if (d != 0)
-                        return (d > 0) - (d < 0); /* sign of d */
-
-                /* Sort "/foo/a" before "/foo/aaa" */
-                d = (j > k) - (j < k);  /* sign of (j - k) */
-                if (d != 0)
-                        return d;
-
-                a += j;
-                b += k;
-        }
-}
-
-bool path_equal(const char *a, const char *b) {
-        return path_compare(a, b) == 0;
-}
-
-bool path_equal_or_files_same(const char *a, const char *b) {
-        return path_equal(a, b) || files_same(a, b) > 0;
-}
-
-char* path_join(const char *root, const char *path, const char *rest) {
-        assert(path);
-
-        if (!isempty(root))
-                return strjoin(root, endswith(root, "/") ? "" : "/",
-                               path[0] == '/' ? path+1 : path,
-                               rest ? (endswith(path, "/") ? "" : "/") : NULL,
-                               rest && rest[0] == '/' ? rest+1 : rest,
-                               NULL);
-        else
-                return strjoin(path,
-                               rest ? (endswith(path, "/") ? "" : "/") : NULL,
-                               rest && rest[0] == '/' ? rest+1 : rest,
-                               NULL);
-}
-
-int find_binary(const char *name, char **ret) {
-        int last_error, r;
-        const char *p;
-
-        assert(name);
-
-        if (is_path(name)) {
-                if (access(name, X_OK) < 0)
-                        return -errno;
-
-                if (ret) {
-                        r = path_make_absolute_cwd(name, ret);
-                        if (r < 0)
-                                return r;
-                }
-
-                return 0;
-        }
-
-        /**
-         * Plain getenv, not secure_getenv, because we want
-         * to actually allow the user to pick the binary.
-         */
-        p = getenv("PATH");
-        if (!p)
-                p = DEFAULT_PATH;
-
-        last_error = -ENOENT;
-
-        for (;;) {
-                _cleanup_free_ char *j = NULL, *element = NULL;
-
-                r = extract_first_word(&p, &element, ":", EXTRACT_RELAX|EXTRACT_DONT_COALESCE_SEPARATORS);
-                if (r < 0)
-                        return r;
-                if (r == 0)
-                        break;
-
-                if (!path_is_absolute(element))
-                        continue;
-
-                j = strjoin(element, "/", name, NULL);
-                if (!j)
-                        return -ENOMEM;
-
-                if (access(j, X_OK) >= 0) {
-                        /* Found it! */
-
-                        if (ret) {
-                                *ret = path_kill_slashes(j);
-                                j = NULL;
-                        }
-
-                        return 0;
-                }
-
-                last_error = -errno;
-        }
-
-        return last_error;
-}
-
-bool paths_check_timestamp(const char* const* paths, usec_t *timestamp, bool update) {
-        bool changed = false;
-        const char* const* i;
-
-        assert(timestamp);
-
-        if (paths == NULL)
-                return false;
-
-        STRV_FOREACH(i, paths) {
-                struct stat stats;
-                usec_t u;
-
-                if (stat(*i, &stats) < 0)
-                        continue;
-
-                u = timespec_load(&stats.st_mtim);
-
-                /* first check */
-                if (*timestamp >= u)
-                        continue;
-
-                log_debug("timestamp of '%s' changed", *i);
-
-                /* update timestamp */
-                if (update) {
-                        *timestamp = u;
-                        changed = true;
-                } else
-                        return true;
-        }
-
-        return changed;
-}
-
-static int binary_is_good(const char *binary) {
-        _cleanup_free_ char *p = NULL, *d = NULL;
-        int r;
-
-        r = find_binary(binary, &p);
-        if (r == -ENOENT)
-                return 0;
-        if (r < 0)
-                return r;
-
-        /* An fsck that is linked to /bin/true is a non-existent
-         * fsck */
-
-        r = readlink_malloc(p, &d);
-        if (r == -EINVAL) /* not a symlink */
-                return 1;
-        if (r < 0)
-                return r;
-
-        return !PATH_IN_SET(d, "true"
-                               "/bin/true",
-                               "/usr/bin/true",
-                               "/dev/null");
-}
-
-int fsck_exists(const char *fstype) {
-        const char *checker;
-
-        assert(fstype);
-
-        if (streq(fstype, "auto"))
-                return -EINVAL;
-
-        checker = strjoina("fsck.", fstype);
-        return binary_is_good(checker);
-}
-
-int mkfs_exists(const char *fstype) {
-        const char *mkfs;
-
-        assert(fstype);
-
-        if (streq(fstype, "auto"))
-                return -EINVAL;
-
-        mkfs = strjoina("mkfs.", fstype);
-        return binary_is_good(mkfs);
-}
-
-char *prefix_root(const char *root, const char *path) {
-        char *n, *p;
-        size_t l;
-
-        /* If root is passed, prefixes path with it. Otherwise returns
-         * it as is. */
-
-        assert(path);
-
-        /* First, drop duplicate prefixing slashes from the path */
-        while (path[0] == '/' && path[1] == '/')
-                path++;
-
-        if (isempty(root) || path_equal(root, "/"))
-                return strdup(path);
-
-        l = strlen(root) + 1 + strlen(path) + 1;
-
-        n = new(char, l);
-        if (!n)
-                return NULL;
-
-        p = stpcpy(n, root);
-
-        while (p > n && p[-1] == '/')
-                p--;
-
-        if (path[0] != '/')
-                *(p++) = '/';
-
-        strcpy(p, path);
-        return n;
-}
-
-int parse_path_argument_and_warn(const char *path, bool suppress_root, char **arg) {
-        char *p;
-        int r;
-
-        /*
-         * This function is intended to be used in command line
-         * parsers, to handle paths that are passed in. It makes the
-         * path absolute, and reduces it to NULL if omitted or
-         * root (the latter optionally).
-         *
-         * NOTE THAT THIS WILL FREE THE PREVIOUS ARGUMENT POINTER ON
-         * SUCCESS! Hence, do not pass in uninitialized pointers.
-         */
-
-        if (isempty(path)) {
-                *arg = mfree(*arg);
-                return 0;
-        }
-
-        r = path_make_absolute_cwd(path, &p);
-        if (r < 0)
-                return log_error_errno(r, "Failed to parse path \"%s\" and make it absolute: %m", path);
-
-        path_kill_slashes(p);
-        if (suppress_root && path_equal(p, "/"))
-                p = mfree(p);
-
-        free(*arg);
-        *arg = p;
-        return 0;
-}
-
-char* dirname_malloc(const char *path) {
-        char *d, *dir, *dir2;
-
-        assert(path);
-
-        d = strdup(path);
-        if (!d)
-                return NULL;
-
-        dir = dirname(d);
-        assert(dir);
-
-        if (dir == d)
-                return d;
-
-        dir2 = strdup(dir);
-        free(d);
-
-        return dir2;
-}
-
-bool filename_is_valid(const char *p) {
-        const char *e;
-
-        if (isempty(p))
-                return false;
-
-        if (streq(p, "."))
-                return false;
-
-        if (streq(p, ".."))
-                return false;
-
-        e = strchrnul(p, '/');
-        if (*e != 0)
-                return false;
-
-        if (e - p > FILENAME_MAX)
-                return false;
-
-        return true;
-}
-
-bool path_is_safe(const char *p) {
-
-        if (isempty(p))
-                return false;
-
-        if (streq(p, "..") || startswith(p, "../") || endswith(p, "/..") || strstr(p, "/../"))
-                return false;
-
-        if (strlen(p)+1 > PATH_MAX)
-                return false;
-
-        /* The following two checks are not really dangerous, but hey, they still are confusing */
-        if (streq(p, ".") || startswith(p, "./") || endswith(p, "/.") || strstr(p, "/./"))
-                return false;
-
-        if (strstr(p, "//"))
-                return false;
-
-        return true;
-}
-
-char *file_in_same_dir(const char *path, const char *filename) {
-        char *e, *ret;
-        size_t k;
-
-        assert(path);
-        assert(filename);
-
-        /* This removes the last component of path and appends
-         * filename, unless the latter is absolute anyway or the
-         * former isn't */
-
-        if (path_is_absolute(filename))
-                return strdup(filename);
-
-        e = strrchr(path, '/');
-        if (!e)
-                return strdup(filename);
-
-        k = strlen(filename);
-        ret = new(char, (e + 1 - path) + k + 1);
-        if (!ret)
-                return NULL;
-
-        memcpy(mempcpy(ret, path, e + 1 - path), filename, k + 1);
-        return ret;
-}
-
-bool hidden_or_backup_file(const char *filename) {
-        const char *p;
-
-        assert(filename);
-
-        if (filename[0] == '.' ||
-            streq(filename, "lost+found") ||
-            streq(filename, "aquota.user") ||
-            streq(filename, "aquota.group") ||
-            endswith(filename, "~"))
-                return true;
-
-        p = strrchr(filename, '.');
-        if (!p)
-                return false;
-
-        /* Please, let's not add more entries to the list below. If external projects think it's a good idea to come up
-         * with always new suffixes and that everybody else should just adjust to that, then it really should be on
-         * them. Hence, in future, let's not add any more entries. Instead, let's ask those packages to instead adopt
-         * one of the generic suffixes/prefixes for hidden files or backups, possibly augmented with an additional
-         * string. Specifically: there's now:
-         *
-         *    The generic suffixes "~" and ".bak" for backup files
-         *    The generic prefix "." for hidden files
-         *
-         * Thus, if a new package manager "foopkg" wants its own set of ".foopkg-new", ".foopkg-old", ".foopkg-dist"
-         * or so registered, let's refuse that and ask them to use ".foopkg.new", ".foopkg.old" or ".foopkg~" instead.
-         */
-
-        return STR_IN_SET(p + 1,
-                          "rpmnew",
-                          "rpmsave",
-                          "rpmorig",
-                          "dpkg-old",
-                          "dpkg-new",
-                          "dpkg-tmp",
-                          "dpkg-dist",
-                          "dpkg-bak",
-                          "dpkg-backup",
-                          "dpkg-remove",
-                          "ucf-new",
-                          "ucf-old",
-                          "ucf-dist",
-                          "swp",
-                          "bak",
-                          "old",
-                          "new");
-}
-
-bool is_device_path(const char *path) {
-
-        /* Returns true on paths that refer to a device, either in
-         * sysfs or in /dev */
-
-        return
-                path_startswith(path, "/dev/") ||
-                path_startswith(path, "/sys/");
-}